Sun Prairie's Fence Regulations: The Rules That Matter

Every city handles fence regulations a little differently. In Sun Prairie, Wisconsin, there are 2 distinct rules that residents and property owners should be aware of. Some are stricter than what neighboring cities enforce, and others are more relaxed. Here is what you need to know.

Material Restrictions

Sun Prairie bans chain link and wire mesh fencing from residential front and street yards, while nonresidential properties may use those materials anywhere and add barbed wire on security fences at least five and a half feet tall.

Key details: Front-yard ban: chain link and wire mesh in residential front/street yards. Barbed wire allowed: nonresidential security fences only. Minimum barbed-wire fence height: 5.5 feet (66 inches). Applies to fences: 30 inches tall or more. Citation: Sun Prairie Code § 17.36.200(C)(1).

Installing chain link or wire mesh in a required residential front or street yard, or barbed wire below the 66-inch security-fence threshold, violates Section 17.36.200(C)(1) and is enforced under Section 17.48.060. The zoning administrator can require removal or correction within ten working days of written notice, or abate a hazardous fence directly and bill the property owner, with each day of continued violation a separate offense.

Height Limits

Sun Prairie regulates fences under Title 17 (Zoning), Section 17.36.200 of the Municipal Code. Residential fences may not exceed six (6) feet in height, except within twenty (20) feet of a street yard property line, where the maximum is four (4) feet. Fences along side and rear lot lines may sit on the property line, but must be set back at least two (2) feet from the street yard (front) property line. A building permit issued by the Sun Prairie Building Inspection Division (300 E. Main Street) is required prior to installation, and a final inspection verifying location, height, and materials is mandatory.

Key details: Rear/Side Yard Maximum: 6 ft. Street Yard / Front (within 20 ft of ROW): 4 ft maximum. Street Yard Setback: Minimum 2 ft from front property line. Side/Rear Property Line Setback: May sit on the property line. Corner Lot 6-ft Side Yard Fence: Allowed only with administrative Special Use Permit.

Constructing a fence taller than the 6-ft (rear/side) or 4-ft (street yard) limits, encroaching within the 2-ft street-yard setback, using prohibited materials (barbed wire, razor wire, electric wire, or chain link/wire mesh in front yards), or installing a fence without a building permit can trigger municipal enforcement by the Building Inspection Division. Owners may be ordered to remove or modify the fence and may face citations and forfeitures prosecuted in Dane County Circuit Court. A required final inspection that fails (for incorrect location, height, or materials) must be corrected before the permit is closed.

The Bottom Line

Sun Prairie's fence regulations rules are a mixed bag. Some areas are strict, others are relaxed, and the details matter. The best approach is to check the specific rule that applies to your situation rather than assuming Sun Prairie is broadly strict or permissive.

Keep in mind that Sun Prairie can amend these rules at any council meeting. For the most current version of any rule mentioned here, check the specific ordinance page, where we track updates as they happen.